@mcallister1002 I am not familiar with most of what is in osteostim, so that makes me a bit leery. Most of the ingredients list nausea, diarrhea and other potential digestive issues. N-acetyl-cistene is an fda approved drug-maybe that’s a good thing, not sure. Anyhow, not sure it’s safe to take all of those daily. Also, it has more K…in addition to osteo-sustain and raises total of D3 to 2000 IUs daily. I think I am just generally concerned about taking so many new vitamins and whether or not they would be safe. Being a worry wart basically. That’s why I was asking about your experience with it.